PURIFICATION AND CHARACTERIZATION OF VITAMIN E FROM PFAD (PALM FATTY ACID DISTILLATE) FOR FOOD AND COSMETIC ANTIOXIDANTS WITH PREPARATIVE ADSORPTION PROCESS
Vitamin E is an essential nutrient because of its function as an antioxidant in the human body. Palm oil is one of the best sources of vitamin E compared to other vegetable oils. PFAD is a by-product resulted by deodorizing unit in palm refinery. Application of heat at deodorization unit indirectly...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/68148 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Vitamin E is an essential nutrient because of its function as an antioxidant in the human body. Palm oil is one of the best sources of vitamin E compared to other vegetable oils. PFAD is a by-product resulted by deodorizing unit in palm refinery. Application of heat at deodorization unit indirectly causes elution of the 0,5%-wt vitamin E content in PFAD. Isolation processes of vitamin E are generally combined to produce high purity vitamin E fraction. The combination of neutralization, extraction, and adsorption method is a simple method and resulting high purity and yield of vitamin E. The purposes of this study is to determine the best operating conditions in the preparative adsorption using silica as adsorbent on the recovery of vitamin E. the bed height and flow rate of the vitamin E solution are varied. Then, the parameters of bed height and flow rate are modeled with the Bed Depth Service Time (BDST) Model.
In this study, there are five stages of the process : neutralization, extraction, adsorption, desorption, and evaporation. The main focus of this research is on the preparative vitamin E adsorption with variations in bed height (6; 7; 8 cm) and flow rate of feed soution (11; 16; 21 ml/min) with the column temperature is constant at 25oC. The adsorption process is carried out until silica is saturated in the column.
Adsorption process on the packed-bed silica column at bed height 8 cm and flowrate 11 ml/minutes is the best operating condition. The average BDST capacity of duplo runs is 277.20 mg adsorbate/g adsorbent. The uptake percentage is 98.8% and the average saturation percentage from duplo runs is 146.53 g/L. the recovery percentage of vitamin E after desorption process is 98.62%. The Bed Depth Service Time (BDST) model can describe the adsorption profile quite well, which is indicated by the R2 value >0,96.
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